Whole House Generator Installation Cost
Standby generators automatically provide backup power during outages. In areas prone to severe weather, they add significant peace of mind and resale value. Natural gas units require no fuel storage.
Low Estimate
$5,000
Mid-Range
$15,000
High End
$35,000
Avg ROI
55%
Interactive Cost Estimator
Mid-grade materials, good quality fixtures, standard options.
Estimated Total Cost
$14,400
Based on 200 sq ft at mid quality. Actual costs vary by location and contractor.
Cost Breakdown
Approx. $6,750 at mid-range pricing
Approx. $8,250 at mid-range pricing
Labor-heavy projects (with high labor costs) benefit most from getting multiple contractor bids. You can save on materials-heavy projects by sourcing materials yourself at contractor pricing.
What Affects the Price
- 1Generator size (kW)
- 2Gas vs propane vs diesel
- 3Transfer switch type
- 4Concrete pad
- 5Utility coordination
Popular Upgrades
- 22kW natural gas unit
- Automatic transfer switch
- Remote monitoring app
Discuss upgrades with your contractor before finalizing the quote. Some upgrades are cheaper to include during initial construction than to add later.
DIY vs. Hire a Pro
Professional installation strongly recommended.
DIY Advantages
- • Save 45% on labor costs ($6,750 at mid-range)
- • Control over timeline and material selection
- • Satisfaction of completing the project yourself
- • Flexibility to work in phases
Pro Advantages
- • Guaranteed workmanship and professional finish
- • Proper permits and code compliance
- • Access to trade pricing on materials
- • Required for safety and code compliance
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